Which statement describes

Question

the creation and destruction
of ocean rock as they
undergo seafloor
spreading?
New rock is created
at mid-ocean ridges
and is then
reabsorbed in
ocean trenches.
New rock is created
in ocean trenches
and is then
reabsorbed at mid�ocean ridges.
New rock is created
in ocean trenches
and then turns to
sediment on the
ocean floor.
New rock is created
at mid-ocean ridges
and then turns to
sediment on the
ocean floor.

Answer 1

The statement that accurately describes the creation and destruction of ocean rock during seafloor spreading is:

"New rock is created at mid-ocean ridges and is then reabsorbed in ocean trenches."

At mid-ocean ridges, magma rises from the mantle, solidifying to form new oceanic crust. This process continuously adds new rock to the ocean floor. As tectonic plates move apart, older oceanic crust is pushed away from the ridge and can eventually be subducted back into the mantle at ocean trenches, where it is reabsorbed.